{"api_version":"1","generated_at":"2026-04-23T01:19:12+00:00","cve":"CVE-2026-31496","urls":{"html":"https://cve.report/CVE-2026-31496","api":"https://cve.report/api/cve/CVE-2026-31496.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-31496","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-31496"},"summary":{"title":"netfilter: nf_conntrack_expect: skip expectations in other netns via proc","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_expect: skip expectations in other netns via proc\n\nSkip expectations that do not reside in this netns.\n\nSimilar to e77e6ff502ea (\"netfilter: conntrack: do not dump other netns's\nconntrack entries via proc\").","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-22 14:16:47","updated_at":"2026-04-22 14:16:47"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/2028405ea6987b4448784e439413202cfe19f43f","name":"https://git.kernel.org/stable/c/2028405ea6987b4448784e439413202cfe19f43f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3265ad619987cb551edaf797ed056d80ac450225","name":"https://git.kernel.org/stable/c/3265ad619987cb551edaf797ed056d80ac450225","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/168145c87444619e3e649322bbe7719ecd00d411","name":"https://git.kernel.org/stable/c/168145c87444619e3e649322bbe7719ecd00d411","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9ca8c7452493d915f9bbf2f39331e6c583d07a23","name":"https://git.kernel.org/stable/c/9ca8c7452493d915f9bbf2f39331e6c583d07a23","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dcfcd95b3ae7683e8ae55c92284b3430ce614bc7","name":"https://git.kernel.org/stable/c/dcfcd95b3ae7683e8ae55c92284b3430ce614bc7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3db5647984de03d9cae0dcddb509b058351f0ee4","name":"https://git.kernel.org/stable/c/3db5647984de03d9cae0dcddb509b058351f0ee4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-31496","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31496","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9b03f38d0487f3908696242286d934c9b38f9d2a 2028405ea6987b4448784e439413202cfe19f43f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9b03f38d0487f3908696242286d934c9b38f9d2a 168145c87444619e3e649322bbe7719ecd00d411 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9b03f38d0487f3908696242286d934c9b38f9d2a dcfcd95b3ae7683e8ae55c92284b3430ce614bc7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9b03f38d0487f3908696242286d934c9b38f9d2a 9ca8c7452493d915f9bbf2f39331e6c583d07a23 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9b03f38d0487f3908696242286d934c9b38f9d2a 3265ad619987cb551edaf797ed056d80ac450225 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 9b03f38d0487f3908696242286d934c9b38f9d2a 3db5647984de03d9cae0dcddb509b058351f0ee4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2.6.28","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 2.6.28 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.168 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.131 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.80 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.21 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.11 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/netfilter/nf_conntrack_expect.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2028405ea6987b4448784e439413202cfe19f43f","status":"affected","version":"9b03f38d0487f3908696242286d934c9b38f9d2a","versionType":"git"},{"lessThan":"168145c87444619e3e649322bbe7719ecd00d411","status":"affected","version":"9b03f38d0487f3908696242286d934c9b38f9d2a","versionType":"git"},{"lessThan":"dcfcd95b3ae7683e8ae55c92284b3430ce614bc7","status":"affected","version":"9b03f38d0487f3908696242286d934c9b38f9d2a","versionType":"git"},{"lessThan":"9ca8c7452493d915f9bbf2f39331e6c583d07a23","status":"affected","version":"9b03f38d0487f3908696242286d934c9b38f9d2a","versionType":"git"},{"lessThan":"3265ad619987cb551edaf797ed056d80ac450225","status":"affected","version":"9b03f38d0487f3908696242286d934c9b38f9d2a","versionType":"git"},{"lessThan":"3db5647984de03d9cae0dcddb509b058351f0ee4","status":"affected","version":"9b03f38d0487f3908696242286d934c9b38f9d2a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/netfilter/nf_conntrack_expect.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.28"},{"lessThan":"2.6.28","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.131","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.80","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.21","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.168","versionStartIncluding":"2.6.28","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.131","versionStartIncluding":"2.6.28","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.80","versionStartIncluding":"2.6.28","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.21","versionStartIncluding":"2.6.28","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.11","versionStartIncluding":"2.6.28","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"2.6.28","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_expect: skip expectations in other netns via proc\n\nSkip expectations that do not reside in this netns.\n\nSimilar to e77e6ff502ea (\"netfilter: conntrack: do not dump other netns's\nconntrack entries via proc\")."}],"providerMetadata":{"dateUpdated":"2026-04-22T13:54:18.287Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2028405ea6987b4448784e439413202cfe19f43f"},{"url":"https://git.kernel.org/stable/c/168145c87444619e3e649322bbe7719ecd00d411"},{"url":"https://git.kernel.org/stable/c/dcfcd95b3ae7683e8ae55c92284b3430ce614bc7"},{"url":"https://git.kernel.org/stable/c/9ca8c7452493d915f9bbf2f39331e6c583d07a23"},{"url":"https://git.kernel.org/stable/c/3265ad619987cb551edaf797ed056d80ac450225"},{"url":"https://git.kernel.org/stable/c/3db5647984de03d9cae0dcddb509b058351f0ee4"}],"title":"netfilter: nf_conntrack_expect: skip expectations in other netns via proc","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-31496","datePublished":"2026-04-22T13:54:18.287Z","dateReserved":"2026-03-09T15:48:24.102Z","dateUpdated":"2026-04-22T13:54:18.287Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-22 14:16:47","lastModifiedDate":"2026-04-22 14:16:47","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"31496","Ordinal":"1","Title":"netfilter: nf_conntrack_expect: skip expectations in other netns","CVE":"CVE-2026-31496","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"31496","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_conntrack_expect: skip expectations in other netns via proc\n\nSkip expectations that do not reside in this netns.\n\nSimilar to e77e6ff502ea (\"netfilter: conntrack: do not dump other netns's\nconntrack entries via proc\").","Type":"Description","Title":"netfilter: nf_conntrack_expect: skip expectations in other netns"}]}}}